Any two disjoint spheres in three dimensional space, with different radii, have two bitangent double cones, the apexes of which are called the centers of similitude.
12.
A structural formula is able to indicate arrangements of atoms in three dimensional space in a way that a chemical formula may not be able to do.
13.
Sparse sets were created as they provided freedom of motion for the puppeteers as well as large, solid surfaces for the puppet to act within a three dimensional space.
14.
In 1986, Marc Kirschner and Tim Mitchison proposed that microtubules use their dynamic properties of growth and shrinkage at their plus ends to probe the three dimensional space of the cell.
15.
Eyes are very different; they project the infinite-dimensional space of spectra onto the three dimensional space ( in the case of trichromats ) of responses of the three kinds of cone cells.
16.
His most notable work is " The World of the Unseen ", a piece in which he argues that the universe consists of three dimensional space completely removed from these three planes.
17.
The conceptual difference between an ECG and the MCG is as follows : the ECG treats the heart as a single dipole that emits electrical currents into a three dimensional space as vectors.
18.
In three dimensional space, each position vector requires three coordinates to uniquely define the location of a point, so there are 3 " N " coordinates to uniquely define the configuration of the system.
19.
According to mathematics of Albert Einstein, on whose never disproven giant shoulders this definition of reality is built, we all share continuous three dimensional space and the illusion of time as change of this 3d space.
20.
The " n "-body problem considers N point masses m _ i, i = 1, 2, \ ldots, N in an inertial reference frame in three dimensional space \ mathbb { R } ^ 3 moving under the influence of mutual gravitational attraction.
